Differentiating uterine sarcoma from leiomyoma: BET¹T²ER Check!

Area of Science:

• Radiology
• Gynecologic Oncology
• Pathology

Background:

• Uterine sarcomas are rare but critical diagnoses not to miss.
• Distinguishing uterine sarcomas from benign leiomyomas (fibroids) can be challenging due to overlapping imaging features.
• Atypical fibroids can present with suspicious imaging characteristics, mimicking malignancy.

Purpose of the Study:

• To review the current literature on imaging features differentiating uterine sarcomas from atypical fibroids.
• To provide an aide-memoire for identifying key features suggestive of uterine sarcoma on imaging.
• To improve diagnostic accuracy in cases of suspected uterine malignancy.

Main Methods:

• Literature review of imaging findings in uterine sarcoma and atypical fibroids.
• Analysis of characteristic imaging features such as mass size, outline, and signal intensity.
• Evaluation of secondary signs of spread in uterine masses.

Main Results:

• Benign leiomyomas typically show low T2 signal intensity and well-defined outlines.
• Uterine sarcomas often present as large masses with irregular outlines and intermediate T2 signal intensity.
• Atypical presentations of fibroids can complicate differentiation, necessitating careful evaluation of specific imaging features.

Conclusions:

• Accurate differentiation of uterine sarcomas from atypical fibroids relies on a comprehensive assessment of imaging features.
• Utilizing mnemonic aids like BETT ER Check! can enhance the identification of malignancy-suspicious features.
• Improved imaging interpretation is vital for timely diagnosis and management of uterine sarcomas.